I was surprised and pleased to see that they include piano roll scans in their archive. The perfect candidate for inclusion in this section of the archive woul

I was surprised and pleased to see that they include piano roll scans in their archive. The perfect candidate for inclusion in this section of the archive would be the works of Conlon Nancarrow, whose works for player piano were composed directly onto paper rolls. Transcribing them from recordings is prohibitively difficult due to the unusual and precise time relationships between the notes, and the density of the textures. Supposedly his works have been scanned, but the resultant midi files were not made publicly available. Some potential difficulties in doing this are acquiring access to the rolls, and their copyright status.